EDIT: I ordered the screen now waiting :)
A few day ago I started rebuilding this projects to make it more portable I made it smaller and I want to use a new screen that is smaller(3.5") and uses less energy(http://www.adafruit.com/products/913). I have almost enough money to buy the screen after that I will make a new update. at the moment I can power it with 4aa batteries maybe I will find an alternative. I am sill thinking about how should mount the screen like a laptop screen or like a gameboy(flat) or maybe somehow else what do you guys think?
This is how it looks now:
This is the booster I havet to power the display as soon as I have it:
some extra pictures: